Trojan J185G-AC · Traction battery 12V 185Ah

Battery TROJAN J185G-AC 12V 185Ah
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  • Battery TROJAN J185G-AC 12V 185Ah

Specifications

BrandTROJAN
Part numberJ185G-AC
Voltage (V)12
Capacity (C20)185Ah (c20)
Capacity (C5)152Ah (c5)
TechnologyLead-acid
Length391.00 mm
Width175.00 mm
Height386.00 mm
See the full specifications →
€639.70
VAT included
Quantity

  • 24-48h delivery
  • 14-day returns
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Brand TROJAN Reference J185G-AC

4,54· 8 reseñas
4,54/5★★★★★8 reviewsVerified purchases
  • ★★★★Luis Marquez: Gracias a baterias.com pude elegir la batería más adecudada para mi vehículo
  • ★★★★Jose Francisco Hernandez: Recomiendo esta web, excelente servicio
  • ★★★★★Diego Aguilar: Gracias por asesorarme con la instalación de mi batería
See all 8 reviews

Trojan J185G-AC 12V 185Ah is a traction battery for industrial electric vehicles: forklifts, pallet trucks, elevating platforms, cleaning machines (scrubbers) and golf buggies. Built for deep discharges and 8-hour continuous work cycles.

Why this traction battery?

  • Industrial designbuilt for 8 hours of continuous daily work
  • Deep discharges without damagefully recovers when recharged
  • Long industrial lifespanpays back the investment over time
Voltage
12 V
Capacity
185 Ah C20
Dimensions
391×175×386 mm
Technology
Lead-acid
Weight
48 kg
Model
TROJAN ciclo profundo - T2 Technology
Logo Trojan

Golf cart battery Trojan J185G-AC ciclo profundo - T2 Technology 185Ah 12V

12VVoltage
185AhCapacity
48kgWeight

The 12 V, 185 Ah Trojan J185G-AC from the ciclo profundo - T2 Technology range with conventional lead-acid technology is designed for golf carts and electric utility vehicles. It replaces the original battery without adaptation in golf carts with a 391 × 175 × 386 mm format: same 185 Ah capacity.

  • Conventional lead-acid: the most proven and economical technology.
  • Daily deep discharges without capacity loss.
  • Sealed and maintenance-free.
  • Full recharge every night with the vehicle charger.

Size, terminals and hold-down of the Trojan J185G-AC

In terms of format, the Trojan J185G-AC measures 391 × 175 × 386 mm (length × width × height) and weighs 48 kg. It uses 7 9 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

What the Trojan J185G-AC is for

With 185 Ah, the Trojan J185G-AC forms part of the battery banks of golf carts and electric utility vehicles. Always replace the complete set to avoid imbalance. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 48 kg and 7 9 terminals.

The Trojan J185G-AC: ciclo profundo - T2 Technology range and conventional lead-acid technology

The J185G-AC is part of the Trojan ciclo profundo - T2 Technology range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.

The conventional lead-acid battery remains the most widespread technology thanks to its balance of capacity, cranking current and price. Well maintained and kept charged, it offers years of reliable service in vehicles without Start-Stop.

Why choose Trojan batteries

Trojan Battery is the world reference in deep-cycle batteries: golf carts, cleaning machines, aerial platforms and solar systems rely on its T2 technology and longevity. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

Official warranty

The Trojan J185G-AC comes with the manufacturer's official warranty against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.

How to make it last longer

Always replace all the batteries in the bank at once and use the charger specified by the vehicle manufacturer. Recharge the set fully after each round and avoid routine discharges below 20%.

When you get it and how to return it

Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic and Canary Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.

BCOM-TROJAN-J185G-AC

Data sheet

Brand
TROJAN
Reference
J185G-AC
Model
TROJAN Deep Cycle - T2 Technology
Voltage (V)
12
Length
391.00 mm
Width
175.00 mm
Height
386.00 mm
Weight
48 Kgs
Technology
Lead-acid
Terminal type
7 9
Capacity (C20)
185Ah (c20)
Capacity (C5)
152Ah (c5)

Specific References

EAN13
8404653001742
MPN
J185G-AC
4,54/5
★★★★★8 reviews
Verified purchases
Latest verified reviews
★★★★★Luis Marquez
27/07/2026
Me ayudaron a elegir la batería correcta

Gracias a baterias.com pude elegir la batería más adecudada para mi vehículo

★★★★★Jose Francisco Hernandez
22/01/2026
Excelente

Recomiendo esta web, excelente servicio

★★★★★Diego Aguilar
01/01/2026
Excelente guía

Gracias por asesorarme con la instalación de mi batería

★★★★★Juan Jose Jimenez
27/12/2025
Buena atención y entrega rápida

MRW me entregó en menos de un día. Increíble

★★★★★Sebastian Santiago
17/11/2025
Buen asesoramiento

Tenía dudas sobre qué bateria elegir y me ayudaron a elegir la bateria correcta

Codes and references Trojan J185G-AC

Brand Trojan
Manufacturer range TROJAN Deep Cycle - T2 Technology
Manufacturer reference (MPN) J185G-AC
EAN-13 barcode 8404653001742
Dimensions (length × width × height) 391 × 175 × 386 mm (391x175x386)

Comparison: Trojan J185G-AC vs equivalents — alternatives with the same dimensions, Ah and CCA

The Trojan J185G-AC is interchangeable with these equivalent references: J185E-AC (Trojan).

Product Specifications Technology Price
Trojan J185G-AC Trojan J185G-AC This battery ★ 4,5 12V 185Ah Lead-acid €639.70
Trojan J185E-AC Trojan J185E-AC ★ 4,8 12V 175Ah Lead-acid €631.20

Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.

Recommended accessories — complement the Trojan J185G-AC with a charger or tester

How to change the battery

Guide to replace a cyclic battery (12V 4-30Ah) for UPS, mobility scooter, alarm or backup device. Estimated time 10-15 minutes. Important: discharge residual voltage before handling.

⏱ 10-15 min🛠 Tools: Screwdriver or small wrench (3-5 mm typical) · Protective gloves
  1. Step 1. Power off and unplug the device

    Unplug the device (UPS, scooter, alarm) and leave it off for at least 30 seconds to discharge residual capacitor voltage. Work on an insulating surface.

  2. Step 2. Locate the battery compartment

    Usually under the seat (mobility scooter/wheelchair), in the rear module of the UPS, or behind a side panel with screws. Check the device manual for unusual models.

  3. Step 3. Disconnect the negative (−) first

    With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.

  4. Step 4. Disconnect the positive (+) terminal

    Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.

  5. Step 5. Remove the old battery

    Typical weight 1-15 kg depending on capacity. Many cyclic batteries are AGM/GEL — keep them upright. Do NOT invert the battery: even sealed, residue may exist.

  6. Step 6. Fit the new battery

    Same orientation and type (AGM, GEL or flooded). Polarity must match the device, not a chassis (this is not a car). Make sure terminals do not touch metal parts of the compartment.

  7. Step 7. Connect the positive (+) first

    On cyclic devices the order is reversed compared to cars: positive (+) first, negative (−) afterwards. Tighten without forcing — the plastic terminal housing of cyclic batteries damages easily.

  8. Step 8. Initial charge before first use

    Cyclic batteries ship at 60-80%. Before first use, connect the device charger for 8-12 hours (or use an AGM/GEL smart charger if available). This avoids short cycles and extends lifespan.

Frequently asked questions

How is the Trojan J185G-AC battery installed in the vehicle?

In most devices it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

How long does the Trojan J185G-AC battery last?

Expected lifespan of the Trojan J185G-AC is 4 to 6 years in regular device use without Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.

What are the dimensions of the Trojan J185G-AC battery?

Dimensions (length × width × height) are 391×175×386 mm — also written as 391x175x386 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

Which batteries are equivalent to the Trojan J185G-AC?

Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop devices. See the "Equivalents" section to view recommended options at the same performance level.


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